body {
  margin: 0;
  padding: 0;
  background: #f2f3f5;
  font-family: 'Segoe UI', 'PingFang SC', Arial, sans-serif;
}

.container {
  min-height: 100vh;
  height: 100vh;
  display: flex;
  align-items: stretch;
  justify-content: stretch;
  background: #f6f8f7;
  box-sizing: border-box;
}

.left-panel {
  flex: 1 1 0;
  min-width: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-end;
  padding: 60px 0 60px 8vw;
  box-sizing: border-box;
  background: transparent;
}

.main-title {
  width: auto;
  max-width: 100%;
  height: auto;
  font-size: 40px;
  font-family: 'Inter', 'Segoe UI', Arial, sans-serif;
  font-weight: 400;
  line-height: 55px;
  color: #000000;
  text-align: left;
  letter-spacing: 0;
  margin: 0 0 16px 0;
  align-self: flex-start;
}

.main-desc {
  width: auto;
  max-width: 696px;
  height: auto;
  align-self: flex-start;
  color: #A5A5A5;
  font-family: 'Inter', 'Segoe UI', Arial, sans-serif;
  font-weight: 400;
  font-size: 20px;
  line-height: 35px;
  letter-spacing: 0;
  margin: 0 0 32px 0;
  text-align: left;
}

.main-illustration {
  width: 763px;
  height: 569px;
  margin: 0;
  display: flex;
  align-items: flex-end;
  justify-content: flex-start;
}

.main-illustration img {
  width: 763px;
  height: 569px;
  object-fit: contain;
  display: block;
}


.upload-panel {
  box-sizing: border-box;
  background: #fff;
  border-radius: 32px;
  box-shadow: 0 2px 20px 0 rgba(19, 67, 112, 0.15);
  width: 943px;
  height: 922px;
  min-width: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  flex-shrink: 0;
  margin: 0;
  align-self: center;
  padding: 64px 60px 0 60px;
}


.upload-title {
  width: 214px;
  height: 35px;
  font-family: 'Inter', 'Segoe UI', Arial, sans-serif;
  font-size: 36px;
  font-weight: 500;
  line-height: 35px;
  color: #060326;
  letter-spacing: 8%;
  margin-bottom: 32px;
  text-align: center;
}

.upload-area {
  width: 685px;
  height: 420px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: #F2FAFF;
  border: 1px dashed #0538BB;
  border-radius: 15px;
  box-sizing: border-box;
  padding: 0;
  cursor: pointer;
  transition: border-color 0.2s, box-shadow 0.2s;
  position: relative;
}


.upload-area:hover,
.upload-area:focus-within {
  border-color: #1890ff;
  box-shadow: 0 0 0 2px #e6f7ff;
}

.upload-icon {
  margin-bottom: 12px;
}

.upload-tip {
  color: #8c8c8c;
  font-size: 13px;
  text-align: center;
  max-width: 260px;
}

.file-name {
  margin-top: 10px;
  color: #1890ff;
  font-size: 14px;
  text-align: center;
  word-break: break-all;
}

.button-group {
  display: flex;
  gap: 18px;
  margin-bottom: 32px;
  width: 100%;
  justify-content: center;
}

.btn {
  width: 272px;
  height: 67px;
  border: none;
  border-radius: 8px;
  background: #75ACFF;
  font-family: 'Inter', 'Segoe UI', Arial, sans-serif;
  font-size: 24px;
  font-weight: 400;
  line-height: 35px;
  letter-spacing: 8%;
  color: #fff;
  cursor: pointer;
  transition: background 0.2s, box-shadow 0.2s;
  outline: none;
  padding: 0;
}

.btn-primary {
  background: linear-gradient(90deg, #1890ff 0%, #005be7 100%);
  color: #fff;
  box-shadow: 0 2px 8px 0 rgba(24, 144, 255, 0.10);
}

.btn-primary:hover,
.btn-primary:active {
  background: linear-gradient(90deg, #005be7 0%, #1890ff 100%);
}

.btn-secondary {
  background: #e6f0ff;
  color: #1890ff;
}

.btn-secondary:hover,
.btn-secondary:active {
  background: #d0e6ff;
}

.step-indicator {
  display: flex;
  gap: 0;
  justify-content: center;
  align-items: center;
  position: relative;
  width: 299px;
  margin: 0 auto 32px auto;
}
.step-indicator-line {
  position: absolute;
  top: 50%;
  left: 0;
  width: 100%;
  height: 4px;
  background: #e6eaf0;
  z-index: 0;
  transform: translateY(-50%);
}
.step-indicator-line-active {
  position: absolute;
  top: 50%;
  left: 0;
  height: 4px;
  background: #1890ff;
  z-index: 1;
  transform: translateY(-50%);
  transition: width 0.3s;
}
.step-indicator .step {
  z-index: 2;
  margin: 0 36.5px;
  cursor: pointer;
  box-shadow: 0 0 0 4px rgba(24,144,255,0.08);
}
.step-indicator .step:first-child,
.step-indicator .step:last-child {
  margin-left: 0;
  margin-right: 0;
}
.step:hover {
  box-shadow: 0 0 0 6px #e6f7ff;
  border-color: #005be7;
}
.step:active {
  background: #e6f7ff;
  border-color: #005be7;
}
@media (max-width: 600px) {
  .step-indicator {
    width: 100vw;
    min-width: 0;
    max-width: 100vw;
    margin: 0 auto 24px auto;
  }
  .step-indicator-line,
  .step-indicator-line-active {
    left: 8vw;
    width: calc(100vw - 16vw);
  }
  .step-indicator .step {
    margin: 0 8vw;
  }
}

.step {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: #fff;
  border: 2px solid #1890ff;
  box-sizing: border-box;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  transition: border-color 0.2s, background 0.2s;
}

.step.active {
  background: #e6f7ff;
  border-color: #1890ff;
}
.step.completed {
  background: #1890ff;
  border-color: #1890ff;
  color: #fff;
}

.step .checkmark {
  width: 14px;
  height: 14px;
  display: block;
}

.step:not(.completed) .checkmark {
  display: none;
}

.step-label {
  font-size: 14px;
  color: #1890ff;
  font-family: 'Inter', 'Segoe UI', Arial, sans-serif;
  font-weight: 500;
  line-height: 1;
}

@media (max-width: 600px) {
  .container {
    flex-direction: column;
    align-items: stretch;
    padding: 0;
    max-width: 100vw;
    height: auto;
  }

  .left-panel {
    max-width: 100vw;
    min-width: 0;
    align-items: center;
    padding: 0 0 16px 0;
  }

  .main-illustration {
    margin: 0 auto 0 auto;
  }

  .upload-panel {
    width: 100vw;
    min-width: 0;
    max-width: 100vw;
    box-shadow: none;
    border-radius: 0;
    padding: 24px 8px 16px 8px;
    margin: 0 auto;
  }

  .button-group {
    flex-direction: column;
    gap: 10px;
  }
}